• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
FinanceEconomy

Unemployment just triggered the ultra-reliable Sahm rule that predicts every recession, but its inventor hopes she’s wrong this time

By
Rich Miller
Rich Miller
and
Bloomberg
Bloomberg
Down Arrow Button Icon
By
Rich Miller
Rich Miller
and
Bloomberg
Bloomberg
Down Arrow Button Icon
November 3, 2023, 4:37 PM ET
Jerome Powell
Federal Reserve chair Jerome Powell.Kevin Dietsch/Getty Images

The rise in unemployment to 3.9% last month means joblessness is close to triggering the so-called Sahm Rule, which has proven to be reliable predictor of recessions in the past.

Recommended Video

The rule, hatched by former Federal Reserve economist and now Bloomberg columnist Claudia Sahm, posits the start of a recession when the three-month moving average of the unemployment rate rises by a half-percentage point or more relative to its low during the previous 12 months.

The low for joblessness so far this year was 3.4%. October’s rate was the highest so far this year, following two readings at 3.8% in August and September. 

In a posting on X, the social media platform formerly known as Twitter, Sahm said the rise in unemployment last month was not good news. 

But she added that the Sahm rule “did not trigger, nor is it right on the edge” of triggering despite last month’s increase in joblessness.

Sahm, who heads her own consulting firm, has said she worried her creation has become “a monster.”

“If it was ever going to break it would be now, and I would be so happy to see it break,” Sahm said in an interview in August.

Join us at the Fortune Workplace Innovation Summit May 19–20, 2026, in Atlanta. The next era of workplace innovation is here—and the old playbook is being rewritten. At this exclusive, high-energy event, the world’s most innovative leaders will convene to explore how AI, humanity, and strategy converge to redefine, again, the future of work. Register now.
About the Authors
By Rich Miller
See full bioRight Arrow Button Icon
By Bloomberg
See full bioRight Arrow Button Icon

Latest in Finance

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Finance

Current refi mortgage rates report for May 11, 2026
Personal FinanceReal Estate
Current refi mortgage rates report for May 11, 2026
By Glen Luke FlanaganMay 11, 2026
1 hour ago
Current ARM mortgage rates report for May 11, 2026
Personal FinanceReal Estate
Current ARM mortgage rates report for May 11, 2026
By Glen Luke FlanaganMay 11, 2026
1 hour ago
Mortgage rates today, May 11, 2026
Personal Financemortgages
Mortgage rates today, May 11, 2026
By Glen Luke FlanaganMay 11, 2026
1 hour ago
voters in line
EconomyElections
Forget the Rust Belt or the Sun Belt. The ‘Wired Belt’ may be the next frontier of American political power
By Jake AngeloMay 11, 2026
2 hours ago
Markets sell off as U.S.-Iran ceasefire plans go nowhere, leaving Trump with military options to reopen the Strait of Hormuz
EnergyIran
Markets sell off as U.S.-Iran ceasefire plans go nowhere, leaving Trump with military options to reopen the Strait of Hormuz
By Jason MaMay 10, 2026
10 hours ago
Mah Sing sees natural ‘spillovers’ from Malaysia’s strong growth, as the conglomerate bets on premium residences and data centers
Real EstateSoutheast Asia 500
Mah Sing sees natural ‘spillovers’ from Malaysia’s strong growth, as the conglomerate bets on premium residences and data centers
By Angelica AngMay 10, 2026
11 hours ago

Most Popular

‘This is the way’: Elon Musk endorses Warren Buffett’s famed 5-minute plan to fix the national debt
Economy
‘This is the way’: Elon Musk endorses Warren Buffett’s famed 5-minute plan to fix the national debt
By Jacqueline MunisMay 10, 2026
20 hours ago
OpenAI CEO Sam Altman says Gen Z and millennials are using ChatGPT like a 'life advisor'—but college students might be one step ahead
Tech
OpenAI CEO Sam Altman says Gen Z and millennials are using ChatGPT like a 'life advisor'—but college students might be one step ahead
By Sydney LakeMay 10, 2026
20 hours ago
'Employers are increasingly turning to degree and GPA' in hiring: Recruiters retreat from ‘talent is everywhere,’ double down on top colleges
Future of Work
'Employers are increasingly turning to degree and GPA' in hiring: Recruiters retreat from ‘talent is everywhere,’ double down on top colleges
By Jake AngeloMay 9, 2026
2 days ago
Red flag test: former CEO explains why he rejects job candidates who say they can start right away
Success
Red flag test: former CEO explains why he rejects job candidates who say they can start right away
By Orianna Rosa RoyleMay 9, 2026
2 days ago
Trump thinks he's flying to Beijing with leverage. China spent 6 years making sure he doesn't have any
Commentary
Trump thinks he's flying to Beijing with leverage. China spent 6 years making sure he doesn't have any
By Steve H. HankeMay 10, 2026
22 hours ago
Ted Cruz says the quiet part out loud: Trump accounts are Social Security personal accounts as GOP senator reveals 'dirty little secret'
Politics
Ted Cruz says the quiet part out loud: Trump accounts are Social Security personal accounts as GOP senator reveals 'dirty little secret'
By Jason MaMay 9, 2026
2 days ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.